Felsite and Greywacke Definition

Definition of Felsite and Greywacke

The general Felsite and Greywacke definition can be stated as: Felsite is a very fine grained volcanic rock that may or may not contain larger crystals and light colored rock that typically requires petrographic examination or chemical analysis for more precise definition. On the other hand, Greywacke is defined as a dark coarse-grained sandstone rock which contains more than 15 per cent clay. Along with definition of Felsite and Greywacke, get to know about Properties of Felsite and Greywacke. Get to know more information about Felsite and Greywacke origin and discoverer, etymology and class.

History of Felsite and Greywacke

The history of Felsite and Greywacke gives information about where the rock was found and who was its discoverer. Almost each and every aspect of Earth's history is recorded in rocks be it the volcanoes which were erupted or the plants, animals and organisms which are now extinct, as rocks are present from millions of years.

Felsite and Greywacke Origin and Discoverer

Felsite and Greywacke definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Felsite and Greywacke. In this section, you will know about Felsite and Greywacke Origin and Discoverer. Origin of Felsite and Greywacke are Unknown. It is interesting to know the name of Felsite and Greywacke discoverer. The discoverer of Felsite and Greywacke are Unknown.

Etymology of Felsite and Greywacke

Along with Felsite and Greywacke definition, know more about the etymology of Felsite and Greywacke. Etymology of Felsite and Greywacke gives information about origin and formation of a particular rock. Know more about Formation of Felsite and Formation of Greywacke. The etymology of Felsite is From English feldspar and -ite while that of Greywacke is From English feldspar and -ite. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Felsite belongs to Igneous Rocks while Greywacke belongs to Sedimentary Rocks. The sub-class, group and other categories of Felsite and Greywacke are listed below.

For Felsite,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Volcanic
• Other Categories: Fine grained rock and Opaque rock

For Greywacke,

• Sub-class: Durable Rock and Hard Rock
• Group: Not applicable
• Other Categories: Fine grained rock and Opaque rock